root@lmh3-1:~# systemctl stop ufw
root@lmh3-1:~# echo "========== mangle ==========="
iptables -t mangle -S

echo "========== nat ==========="
iptables -t nat -S

echo "========== filter ==========="
iptables -t filter -S
========== mangle ===========
-P PREROUTING ACCEPT
-P INPUT ACCEPT
-P FORWARD ACCEPT
-P OUTPUT ACCEPT
-P POSTROUTING ACCEPT
-N SSTP_OUTPUT
-N SSTP_PREROUTING
-N SSTP_RULE
-A PREROUTING -j SSTP_PREROUTING
-A OUTPUT -j SSTP_OUTPUT
-A SSTP_OUTPUT -m addrtype --dst-type LOCAL -j RETURN
-A SSTP_OUTPUT -m conntrack --ctdir REPLY -j RETURN
-A SSTP_OUTPUT -m owner --gid-owner 13 -j RETURN
-A SSTP_OUTPUT -p udp -m udp --dport 53 -m owner ! --gid-owner 1001 -j RETURN
-A SSTP_OUTPUT -p udp -m conntrack --ctstate NEW,RELATED -j SSTP_RULE
-A SSTP_OUTPUT -m connmark --mark 0x2333 -j MARK --set-xmark 0x2333/0xffffffff
-A SSTP_PREROUTING -m addrtype --dst-type LOCAL -j RETURN
-A SSTP_PREROUTING -m conntrack --ctdir REPLY -j RETURN
-A SSTP_PREROUTING -p udp -m udp ! --dport 53 -m conntrack --ctstate NEW,RELATED -m addrtype ! --src-type LOCAL -j SSTP_RULE
-A SSTP_PREROUTING -p udp -m connmark --mark 0x2333 -j TPROXY --on-port 188 --on-ip 127.0.0.1 --tproxy-mark 0x2333/0xffffffff
-A SSTP_RULE -m set --match-set sstp_white dst -m set ! --match-set sstp_black dst -j RETURN
-A SSTP_RULE -j CONNMARK --set-xmark 0x2333/0xffffffff
========== nat ===========
-P PREROUTING ACCEPT
-P INPUT ACCEPT
-P OUTPUT ACCEPT
-P POSTROUTING ACCEPT
-N SSTP_OUTPUT
-N SSTP_POSTROUTING
-N SSTP_PREROUTING
-N SSTP_RULE
-A PREROUTING -j SSTP_PREROUTING
-A OUTPUT -j SSTP_OUTPUT
-A POSTROUTING -j SSTP_POSTROUTING
-A SSTP_OUTPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,ACK SYN -m addrtype ! --dst-type LOCAL -m owner ! --gid-owner 13 -j SSTP_RULE
-A SSTP_OUTPUT -p udp -m udp --dport 53 -m conntrack --ctstate NEW -m owner ! --gid-owner 13 -m owner ! --gid-owner 1001 -j REDIRECT --to-ports 60053
-A SSTP_POSTROUTING ! -s 127.0.0.1/32 -d 127.0.0.1/32 -j SNAT --to-source 127.0.0.1
-A SSTP_PREROUTING -p tcp -m tcp --tcp-flags FIN,SYN,RST,ACK SYN -m addrtype ! --src-type LOCAL ! --dst-type LOCAL -j SSTP_RULE
-A SSTP_PREROUTING -p udp -m udp --dport 53 -m conntrack --ctstate NEW -m addrtype ! --src-type LOCAL -j REDIRECT --to-ports 60053
-A SSTP_RULE -m set --match-set sstp_white dst -m set ! --match-set sstp_black dst -j RETURN
-A SSTP_RULE -p tcp -j DNAT --to-destination 127.0.0.1:188
========== filter ===========
-P INPUT ACCEPT
-P FORWARD ACCEPT
-P OUTPUT ACCEPT
-N ufw-after-forward
-N ufw-after-input
-N ufw-after-logging-forward
-N ufw-after-logging-input
-N ufw-after-logging-output
-N ufw-after-output
-N ufw-before-forward
-N ufw-before-input
-N ufw-before-logging-forward
-N ufw-before-logging-input
-N ufw-before-logging-output
-N ufw-before-output
-N ufw-reject-forward
-N ufw-reject-input
-N ufw-reject-output
-N ufw-track-forward
-N ufw-track-input
-N ufw-track-output
-A INPUT -j ufw-before-logging-input
-A INPUT -j ufw-before-input
-A INPUT -j ufw-after-input
-A INPUT -j ufw-after-logging-input
-A INPUT -j ufw-reject-input
-A INPUT -j ufw-track-input
-A FORWARD -j ufw-before-logging-forward
-A FORWARD -j ufw-before-forward
-A FORWARD -j ufw-after-forward
-A FORWARD -j ufw-after-logging-forward
-A FORWARD -j ufw-reject-forward
-A FORWARD -j ufw-track-forward
-A OUTPUT -j ufw-before-logging-output
-A OUTPUT -j ufw-before-output
-A OUTPUT -j ufw-after-output
-A OUTPUT -j ufw-after-logging-output
-A OUTPUT -j ufw-reject-output
-A OUTPUT -j ufw-track-output